JP2004044110A - Mounting structure of vertical gutter in base isolation structure and group of connecting pipe used for the structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a vertical gutter in a base isolation structure and a connecting pipe for the gutter capable of making the construction cost low without destroying the gutter by earthquake motion. <P>SOLUTION: The mounting structure of the vertical gutter in the base isolation structure is constituted by connecting the lower end of the leader 5 on the side of the structure mounted on the base isolation structure side getting rid of the earthquake motion is connected to the upper end of the leader 6 on the side of the ground 2 mounted on the side of the ground 2 with a group 7 of a plurality of connecting pipes, a group 7 of connecting pipes comprises an upper connecting pipe 10 fixed to the lower end of the leader 5 on the side of the structure 1, a lower connecting pipe 11 fixed to the upper end of the leader 6 on the side of the ground 2 and a plurality intermediate connecting pipes 12, 13 and 14 constituted by arranging them between the upper connecting pipe 10 and the lower connecting pipe 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a vertical gutter mounting structure and a vertical gutter connecting pipe in a seismic isolation structure.
[0002]
[Prior art]
In recent years, a technology (seismic isolation technology) has been developed to prevent seismic motion from acting on a structure by interposing a seismic isolation device between the ground and the structure and supporting the structure with the seismic isolation device. , And some have been put to practical use. As described above, when a structure is seismically isolated by the seismic isolation device, in addition to the basic structure such as the structure itself or the seismic isolation device, various members attached to the structure, in particular, the ground side and the structure A problem arises in the structure of the various members connecting the sides. For example, if the mounting structure of a downspout for treating rainwater is the same as the conventional mounting structure for a structure that is not seismically isolated, it will be destroyed due to relative displacement between the ground side and the structure side. Therefore, this measure is indispensable.
[0003]
In connection with such a point, Japanese Patent Application Laid-Open No. H11-256874 proposes a method of treating rainwater on a base-isolated structure. In the method proposed in this publication, a drainage groove capable of storing the lower end of a gutter (vertical gutter) is provided in a direction transverse to the dog running of the structure, and rainwater is drained from the foundation structure (ground side) through the drainage groove. Drain into the gutter. According to this method, the downspout and the drainage ditch are seismically isolated together with the structure, so that at least the downspout is not destroyed by the earthquake.
[0004]
[Problems to be solved by the invention]
However, according to the above-described conventional technology, it is possible to prevent the downspout from being damaged by the earthquake. However, not only must a drain be provided for dog running, but also the roof of the structure, such as the front side and the back side. Gutters must be provided according to the number of gutters corresponding to the direction. Moreover, the gutter must be provided at a position close to the outside of the dog running, and the wider the dog is to be provided at a position farther from the gutter and the structure, the wider the dog running must be. Therefore, with the technique disclosed in Japanese Patent Application Laid-Open No. H11-256874, the construction cost is high, and the reality is extremely poor.
[0005]
Therefore, the present invention has been proposed in order to solve the problems of the conventional technology described above, and not only does the downpipe not be destroyed by seismic motion, but also the conventional A vertical gutter mounting structure in a seismic isolation structure that does not greatly change the structure adopted in the structure of the above, can also reduce the construction cost and prevent the construction period from being extended. It is an object of the present invention to provide a connecting pipe for a downspout.
[0006]
The present invention has been proposed to achieve the above object, and a first invention (the invention according to claim 1) relates to a mounting structure of a downspout in a seismic isolation structure. The lower end of the downspout on the structure side attached to the seismic isolated structure side seismically isolated from the upper end of the downspout on the ground side attached to the ground side is connected by a plurality of connecting pipe groups, The connecting pipe group includes an upper connecting pipe fixed to a lower end of the vertical gutter on the structure side, a lower connecting pipe fixed to an upper end of the vertical gutter on the ground side, and the upper connecting pipe and the lower connecting pipe. The upper connecting pipe, the lower connecting pipe, and the intermediate connecting member, which are comprised of a plurality of intermediate connecting pipes disposed therebetween, and constitute the connecting pipe group, are all a large-diameter cylindrical part, A small-diameter tube formed at a lower end of the portion and having a smaller diameter than the large-diameter tubular portion and inserted into the large-diameter tubular portion from above; And it is characterized in that formed by composed of a part.
[0007]
In the first aspect of the present invention, the seismic isolation structure may be any structure that is seismically isolated by at least the seismic isolation device, and the type of the seismic isolation device may be, for example, between the ground side and the structure side. A so-called roller seismic isolation structure in which rolling members such as rollers are arranged in between, a so-called rubber seismic isolation structure in which a structure is supported by a laminate formed by laminating rubber plates, a ground side There is no particular limitation on a structure called a so-called slip seismic isolation in which the upper surface of the sliding plate formed on the lower surface and the lower surface of the sliding member supporting the structure slide in contact with each other due to earthquake motion. May be combined. Further, the seismic isolation structure is not limited to, for example, a detached house, but may be an apartment, a condominium or other collective housing, or a store.
[0008]
Further, in the present invention, these connecting pipe groups are an upper connecting pipe fixed to a lower end of the vertical gutter on the structure side, a lower connecting pipe fixed to an upper end of the vertical gutter on the ground side, The upper connecting pipe, the lower connecting pipe, and the intermediate connecting material, which comprise a plurality of intermediate connecting pipes disposed between the upper connecting pipe and the lower connecting pipe, and constitute the connecting pipe group, are all large-diameter cylinders. And a small-diameter tubular portion formed at the lower end of the large-diameter tubular portion, having a smaller diameter than the large-diameter tubular portion, and inserted into the large-diameter tubular portion from above. Required. The clearance between the inner peripheral surface of the large-diameter cylindrical portion and the outer peripheral surface of the small-diameter cylindrical portion is desirably 1 to 10 mm, as in the third aspect of the present invention. If the clearance is less than 1 mm, the seismic motion may not be effectively absorbed by the connecting pipe group. If a clearance wider than 10 mm is formed, rainwater may pass through the clearance. May leak to the outside. Therefore, this clearance depends on the inner diameter of the large-diameter cylindrical portion and the small-diameter cylindrical portion, but is more preferably 3 to 7 mm. Further, the number of the intermediate connecting pipes needs to be at least two or more (plural) in order to absorb the seismic motion, and the number is not particularly limited other than that. Preferably, the material of the connecting pipe group is made of the same material as the downspout (the invention according to claim 2 or the invention according to claim 5). When PVC, which is a typical gutter material, is used as the material for the downspout, this PVC is used as the material for the connecting pipe group. The invention described in claim 2 and the invention described in claim 5 are limited to the material. The large-diameter cylindrical portion and the small-diameter cylindrical portion constituting the upper connecting pipe, the lower connecting pipe, and the intermediate connecting pipe are not only formed in a cylindrical shape but also in a square shape (square pipe shape). It may be done.
[0009]
Further, a fourth invention (an invention according to claim 3) relates to a connecting pipe group, and includes a lower end of a downspout on a structure side attached to a seismic isolation structure side which is isolated from a seismic motion, and a ground. A plurality of connecting pipe groups connecting the upper end of the ground-side vertical gutter attached to the side, wherein the connecting pipe group is fixed to a lower end of the structure-side vertical gutter; and A lower connecting pipe fixed to the upper end of the downspout on the ground side, and a plurality of intermediate connecting pipes disposed between the upper connecting pipe and the lower connecting pipe; The connecting pipe, the lower connecting pipe, and the intermediate connecting material are all formed in the large-diameter tubular section and the lower end of the large-diameter tubular section, and have a smaller diameter than the large-diameter tubular section, and are provided in the large-diameter tubular section. And a small-diameter cylindrical portion inserted from above.
[0010]
According to each of the above-mentioned inventions, not only is the downspout not destroyed by the seismic motion, but also the construction is not greatly changed from the structure employed in the conventional structure which is not a seismic isolation structure. The cost can be reduced and the extension of the construction period can be prevented. In particular, according to the present invention, since the connecting pipe group is made of the same material as that of the downspout, not only the durability is improved, but also the manufacturing cost can be reduced.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the mounting structure of the downspout of the seismic isolation structure according to one embodiment of the present invention will be described in detail with reference to the drawings, and in this description, the connecting pipe group of the downspout will also be described in detail. I do.
[0012]
As shown in FIG. 1, a method of attaching a downspout in a seismic isolation structure according to this embodiment is as follows: a downspout on a seismic isolation structure side attached to a seismic isolation structure 1 via a mounting bracket (not shown). Hereinafter, one of the downspouts.) 5 and a ground-side downspout (hereinafter, referred to as the other downspout) 6 attached to the ground 2 side are connected by a connecting pipe group 7. It is.
[0013]
Note that the seismic isolation structure 1 is seismically isolated by a seismic isolation device (not shown) installed between the ground 2 and the seismic isolation structure 1. Only the two sides vibrate, and the vibration is not transmitted to the seismic isolation structure 1 side. Further, one downspout 5 attached to the seismic isolation structure 1 is formed of vinyl chloride, and its upper end extends along a lower side of a roof (not shown) formed in the seismic isolation structure 1. The lower end is slightly lower than the base 3 constituting the seismic isolation structure 1 and slightly higher than the upper end of the upright portion 4 a that is erected from the foundation 4 on the ground 2. positioned. The other downspout 6 installed on the ground 2 side is formed of vinyl chloride, and stands upright from the ground 2 so that the upper end is located slightly above the upper surface of the foundation 4. Is connected to a drain pipe 8 buried underground through a substantially L-shaped connection pipe 9.
[0014]
Further, the connecting pipe group 7 is formed integrally with vinyl chloride, which is the same material as the one downspout 5 and the other downspout 6, and as shown in FIG. 2 and FIG. The upper connecting pipe 10 fixed to one downspout 5, the lower connecting pipe 11 fixed to the other downspout 6, and the three connecting pipes mounted between the upper connecting pipe 10 and the lower connecting pipe 11. 14 are constituted by intermediate connecting pipes (first to third intermediate connecting pipes) 12. The upper connecting pipe 10, the lower connecting pipe 11, and the first to third intermediate connecting pipes 12... 14 are all cylindrical large-diameter cylindrical sections 10a. Each of the large-diameter cylindrical portions is constituted by small-diameter cylindrical portions 10b... 14b having the same center as that of the large-diameter cylindrical portions 10a. 14a and the small-diameter cylindrical portions 10b... 14b have the same thickness, and outer step portions 10c... 14c (see FIG. 2) are respectively formed on the outer periphery, and inside step portions are respectively formed on the inside. .. 14d are formed. In this embodiment, the lengths (heights) of the large-diameter cylindrical portions 10a... 14a and the small-diameter cylindrical portions 10b. The clearance between the inner peripheral surfaces of the large-diameter cylindrical portions 10a to 14a and the outer peripheral surfaces of the small-diameter cylindrical portions 10b to 14b is 4 mm.
[0015]
Then, as shown in FIG. 3, the upper connecting pipe 10 is in a state where the lower end side of the one downspout 5 is inserted into the large diameter cylindrical portion 10a and the lower end is in contact with the inner stepped portion 10d. Adhesively fixed. The first intermediate connecting pipe 12 is disposed below the upper connecting pipe 10 in a state where the small-diameter cylindrical portion 10b constituting the upper connecting pipe 10 is inserted inside. A second intermediate connecting pipe 13 is provided below the first intermediate connecting pipe 12, and a third intermediate connecting pipe 14 is provided below the second intermediate connecting pipe 13. The lower connecting pipe 11 is fixed below the third intermediate connecting pipe 14. In the lower connecting pipe 11, the small-diameter cylindrical portion 11b is inserted inward from the upper end side of the other vertical gutter 6, and the upper end of the other vertical gutter 6 is in contact with the outer step 11c of the lower connecting pipe 11. It is adhesively fixed in a state. Therefore, in the connecting pipe group 7, the upper connecting pipe 10 is adhesively fixed to one downspout 5 and the lower connecting pipe 11 is adhesively fixed to the other downspout 6; The first to third intermediate connecting pipes 12... 14 arranged between the pipes 11 have a small-diameter cylindrical part (the reference numeral is omitted) and a large-diameter cylindrical part (the reference numeral is omitted). ), And connected with a clearance formed between the outer peripheral surface of the small-diameter tubular portion and the inner peripheral surface of the large-diameter tubular portion.
[0016]
In addition, a brief description will be given of a construction method for making the above-described vertical gutter mounting structure of the seismic isolation structure. First, a vertical gutter (symbol is omitted) is attached to a horizontal gutter installed along a lower side of a roof (not shown). )). The downspout used has a lower end that extends from the base 4 to the vicinity of the lower end of the upright portion 4a. Then, when the construction of the downspout is completed, the lower end of the downspout is cut by a saw (not shown) or the like, and the other downspout 6 is separated as shown in FIG. The downspout shortened by separating the other downspout 6 is the one downspout 5 described above. Then, when the cutting operation of the downspout is completed, the upper connection pipe 10 is bonded and fixed to the lower end of the one downpipe 5 and the lower connection pipe 11 is bonded to the upper end of the other downpipe 6. Fix it. Then, the third, second, and first intermediate connecting pipes 14, 3, and 12 are placed on the lower connecting pipe 11, and the inside of the large-diameter cylindrical portion 12a that constitutes the first intermediate connecting pipe 12. The other vertical gutter 6 is moved upward so that the small-diameter cylindrical portion 10b constituting the upper connection pipe 10 is inserted into the upper connection pipe 10, and the connection pipe 9 described above is attached to the lower end of the other vertical gutter 6. The drain pipe 8 is connected through the lower pipe, and then the lower end of the other downspout 6 is buried. By such an operation, the mounting structure of the downspout shown in FIG. 1 is obtained.
[0017]
As shown in FIG. 7, when a porch 25 continuous with the ground 2 protrudes laterally below one downspout 5, a connecting pipe 26 is fixed to the lower end of the downspout 5. Then, the connecting pipe group 7 may be provided between the connecting pipe 26 and the other downspout 6. When the lower end of the other vertical gutter 6 is not buried in the ground and is exposed on the ground, an L-shaped gutter 26 is fixed to the lower end of the other vertical gutter 6 as shown in FIG. At the same time, the middle portion may be fixed to the upright portion 4a via the standing band 27.
[0018]
According to the above-described structure for mounting the downspout of the seismic isolation structure, rainwater (not shown) flows from the one downspout 5 through the connecting pipe group 7 into the other downspout 6. Drained. When a predetermined ground motion occurs in the state shown in FIG. 1, the ground 2 side is relatively displaced between the seismic isolation structure 1 side, and as shown in FIG. The entire first to third intermediate connecting pipes 12... 14 constituting the connecting pipe group 7 are bent. That is, when the seismic motion is within a predetermined range, the first to third intermediate connecting pipes 12... 14 are bent and absorb the seismic motion. When the seismic motion is larger than a predetermined size, the first to third connecting pipe groups 12... 14 are disengaged, and the connection state with the upper connecting pipe 10 or the lower connecting pipe 11 is changed. It is released.
[0019]
Therefore, according to the mounting structure of the downspout of the seismic isolation structure described above, it is possible to effectively prevent the gutter from being destroyed by the occurrence of seismic motion, and to use a conventional structure that is not a seismic isolation structure. Since the mounting structure of the downspouts provided in the building and the associated drainage structure are not significantly changed, the cost can be extremely reduced and the construction period of the seismic isolation structure can be prevented from being extended. it can. In particular, according to the installation structure of the downspout according to the above-described embodiment, since the connecting pipe group 7 is made of vinyl chloride, which is the material of the one and the other downspouts 5, 6, the durability is also improved. At the same time, the connecting pipe group 7 can be manufactured at low cost.
[0020]
【The invention's effect】
As is apparent from the above description of the embodiment of the present invention, according to the present invention, the downspout attached to the seismic isolation structure is not only prevented from being destroyed by the seismic The structure does not significantly change from the structure employed in the conventional structure not having the structure, the construction cost can be reduced, and the extension of the construction period can be prevented. In particular, according to the second invention (invention of claim 2) and the fourth invention (invention of claim 4), since the connecting pipe group is made of the same material as the material of the downspout, durability is also improved. Not only is it favorable, but also the manufacturing cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a side view showing a mounting structure of a downspout of a seismic isolation structure.
FIG. 2 is a perspective view showing a connecting pipe group.
FIG. 3 is a side sectional view showing an attached state of a connecting tube group.
FIG. 4 is a side view showing a state after cutting the downspout.
FIG. 5 is a side view showing a method of fixing an upper connecting pipe to one downspout and fixing a lower connecting pipe to the other downspout.
FIG. 6 is a side view showing a state in which first to third intermediate connecting pipes are stacked on a lower connecting pipe fixed to the other downspout.
FIG. 7 is a side view showing another example of the mounting structure of the downspout.
FIG. 8 is a side view showing still another example of the mounting structure of the downspout.
FIG. 9 is a side sectional view showing a state of the first to third intermediate connecting pipes when one of the downspouts and the other downspout are displaced by an earthquake motion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seismic isolation structure 2 Ground 5 One vertical gutter 6 The other vertical gutter 7 Connecting pipe group 10 Upper connecting pipe 11 Lower connecting pipe 12 First intermediate connecting pipe 13 Second intermediate connecting pipe 14 Third intermediate connecting pipe

Claims (6)

The lower end of the downspout on the structure side attached to the seismic isolated structure side that is isolated from the seismic motion and the upper end of the downspout on the ground side attached to the ground side are connected by a plurality of connecting pipe groups,
The connecting pipe group includes an upper connecting pipe fixed to a lower end of the vertical gutter on the structure side, a lower connecting pipe fixed to an upper end of the vertical gutter on the ground side, and the upper connecting pipe and the lower connecting pipe. Consisting of a plurality of intermediate connecting pipes arranged between
The upper connecting pipe, the lower connecting pipe, and the intermediate connecting material constituting the connecting pipe group are all a large-diameter tubular part, and formed at the lower end of the large-diameter tubular part with a smaller diameter than the large-diameter tubular part. And a small-diameter tubular part inserted from above into the large-diameter tubular part. The mounting structure for a downspout according to claim 1, wherein the connecting pipe group is made of the same material as the downspout. The downspout of the seismic isolation structure according to claim 1, wherein a clearance between an inner peripheral surface of the large-diameter cylindrical portion and an outer peripheral surface of the small-diameter cylindrical portion is 1 to 10 mm. Mounting structure. A plurality of connecting pipe groups for connecting a lower end of a downspout on a structure side attached to a seismic isolated structure side to be isolated from an earthquake motion and an upper end of a downspout on a ground side attached to a ground side,
The connecting pipe group includes an upper connecting pipe fixed to a lower end of the vertical gutter on the structure side, a lower connecting pipe fixed to an upper end of the vertical gutter on the ground side, and the upper connecting pipe and the lower connecting pipe. Consisting of a plurality of intermediate connecting pipes arranged between
The upper connecting pipe, the lower connecting pipe, and the intermediate connecting material constituting the connecting pipe group are all a large-diameter tubular part, and formed at the lower end of the large-diameter tubular part with a smaller diameter than the large-diameter tubular part. And a small-diameter tubular portion inserted into the large-diameter tubular portion from above. The connecting pipe group according to claim 4, wherein the connecting pipe group is made of the same material as the downspout. The connecting pipe group according to claim 4 or 5, wherein a clearance between an inner peripheral surface of the large-diameter cylindrical portion and an outer peripheral surface of the small-diameter cylindrical portion is 1 to 10 mm.

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